Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Litnerd - The Pixar for education, reading program for K-5 schools
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Pili Pop - Great language learning method for kids
Plivo - Plivo simplifies your customer engagement.
Wikids - An encyclopedia that talks to your kids